Programs

Functional Zones

Description of the Tamar River Estuary Report Card Functional Zones

Tamar estuary has been divided into five functional zones that reflect differences in critical habitats, key processes and anthropogenic impacts of the estuary. A functional zone is defined as a geographic entity with common structural and functional characteristics which can be defined in a conceptual model and quantified by measurement (Dennison et al., 1999). The zones provide a focus for management actions and future research (Pantus and Dennison, 2005). The five functional zones define clear boundaries through which change can be measured over time along the length of the estuary.

Zones 1, 2 and 3 are considered estuarine due to the salinity range and Zones 4 and 5 fall into the marine category. 

Tamar River Estuary Functional Zones

Zones

Salinity (ppt)

Water Temp (°C)

pH

Water sample depth (m)

Zone 1 -Estuarine

0.5 – 6.0

5.5 – 21.5

6.8 – 8.4

5 – 8

Zone 2 -Estuarine

0.5 – 25.0

6.5 – 22.0

7.2 – 8.2

11 – 20

Zone 3 -Estuarine

3.0 – 29.0

9.0 – 21.0

7.8 – 8.2

17 – 33

Zone 4 -Marine

3.0 – 35.0

10.0 – 21.0

8.1 – 8.2

4 – 42

Zone 5 -Marine

28.0 – 35.0

11.0 – 18.7

7.9 – 8.3

14 – 40

Zone 1-5 Salinity, water temperature, pH, and depth range for the 2010-2011 monitoring period.

 

 

 

Supported by
Tasmania - Explore the possibilities Launceston City Council West Tamar Council George Town Council  Northern Midlands CouncilMeander Valley Council 
    Hydro Tasmania

0.1165 s - Server Process Time

cache - Request Source

1226 - Page ID